Wireless speaker system



FIG. 1 is a perspective view of a wireless speaker system;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a top view thereof.

The broken line showing on the drawing disclosure is for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for a wireless speaker system, as shown anddescribed.